I have a .resx file Namely "Labels.resx" Which is in a separate folder called "Resources". I register this file on app.xaml file as below. <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/Resources/Labels.resx"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary></Application.Resources>

Then try to use on a .XMAL file like <TextBlock x:Name="lblSelectRole" Text="{Binding ManageStaff_lblSelectRole, Source={StaticResource ResourceString}}" Grid.Row="0" Grid.Column="8" />

'ManageStaff_lblSelectRole " I have defined Lable.resx file which is not coming when we run the page.